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algol13
3 years ago
7

#7 I don't know how to solve this

Mathematics
1 answer:
____ [38]3 years ago
3 0
30+1.95x=7.95x

so, 6x=30

x=5
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The ratio of the price of a pair of sneakers to the price of a pair of boots is 15:19. The price of a pair of boots is 570 dolla
Genrish500 [490]

Answer:

$1470

Step-by-step explanation:

sneakers : boots

15 : 19


15        cost sneakers

------ =  -------------------

19          570


using cross products

15 * 570 = 19 * sneakers

8550=19 * sneakers

divide by 19

8550/19 = sneakers

sneakers = 450

total cost = 2* sneakers + boot

total cost = 2 * 450 + 570

total cost = 900 + 570

total cost = 1470


6 0
3 years ago
The answer to this question HELP ME PLS
Papessa [141]
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3 years ago
F(x) = x2<br> What is f(x) + f(x) + f(x)?
Yuliya22 [10]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
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3. 40% of x is 35. Write an equation. Then use your equation to find x.​
MrRissso [65]

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2 years ago
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Answer:

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Step-by-step explanation:

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x = 1.2 / (2/3)

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